Question

PLEASE HELP 25 MINUTES LEFT

38
Marlene wrote an arithmetic sequence where al
=
8 and the common difference is -3.
What is a rule for the nth term of this sequence?

Answer 1

D

Explanation:

The nth term of an arithmetic sequence is

`a_(n)` = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 8 and d = - 3 , then

`a_(n)` = 8 - 3(n - 1) = 8 - 3n + 3 = - 3n + 11 → D